Remove the rest of the device coordinates management from PME

Remove the rest of the device coordinates management from PME

Although it may be convinient to keep an local copy of the
address device coordinates buffer, the management of this buffer
is not the responsibility of the PME module. This patch remove
some of the remains of this management.

Change-Id: I160adfb0319c0bf6e532061aca05ef9cc9aa8a4f